Pneumatic tire



Jam 9, 1923, LMZU?.

H. F. SHFLDON.

PNEUMATIC TIRE.

FILED FEB.'21,1920.

PLQ` l.

' l rwenor Hemer? If". Sheldon lliatented dan. d, llhd..

.application filed February 21, 1920.

/ 1o all who/m, it may concer/1t y Be it knoivn that l., lr'lneenn'r l?.Sirnrno a citizen of the `United States, residing at lloston, county of'iuiliolk, State ot Massa chusetts, have invented an improvement inllhleumat'ic 'll`ires,oil which the tolloivin do" scription, inconnection. with the accompanying drawing', is a speciiication, likecharacters on the drawing,r i'epresentiirgg' like Vairis ',lhisinvention relates to a pneumatic-tired vehicle Wheel and esl'iecially tothat type et vehicle wheel in which the tire is made inindependently-reinovable sections.

rlhe object of the invention is to provide an improved construction bywhich the individual sections` can be quickly and easily removed orreplaced.

ll attain this object by dividingI the rim which receives: the tirecircumferentially, one side of said rim beine; continuons and beingrigidly secured tothe vehicle wheel, and the other side being made insections which are capable of movement transversely toward and from theiixed continuous portion of the rim.

The tire is made in sections corresponding; to the sections oi the rim,and means are provided vvhereby each rim section can be movedtransversely away from the iixed section so as to permit thecorresponding tire section to be removed or replaced.

lin order to give an understanding ot my invention, I have illustratedin the drawings a selected embodiment thereof which will now hedescribed. after `which the novel featlnes will be pointed out in theappended claims. i

lfn the drawings, lliig. l is a side view o a vehicle wheel embodying niy invention;

litiga 2 is an enlarged section on substantially the line 2&2, Fig. l;vv

Fig. 3 is a section on the line 3-3, Fig. 2.

Fig: d is a fragmentary perspective vieiv showing' one section of therim.

l indicates a Wheel body having the usual Wooden telly 2 and alsoprovided With a metal i'elly band 3. Surrounding the telly band 3 is atire-receiving` rim which receives the pneumatic tire indicatedgenerally at 1l. rllhis tire-receiving1` rim may be either of theclincher type or ot the straight side type as desired. fl' haveillustrated herein a riin oit the clincher type.

tierentially along; the line 5 to iforin two por- .llhis tire-receivingrim is divided circum-4 `Serial No. 360,352.

tions, one oi' which is indicated at 6. The rim portion is .aontinuousand extends clear about the Wheel. llt is preferably rigidly or iiriedlysecured to the ielly band 3 in some suitable way as by means oi rivetsor bolts 7. The other portion olf the rim divided transversely .intoseparate sections 8 which rest on the iclly band 3 and are capable oitmovement thereon toward, and from the fixed rini portion 6. rllhepneumatic tire /lis inade in sections E) whichcorrespond to the sections8 olf the rim. These pneumatic tire sections S) are independent :fromeach other, each one being constructed to form a separate cell or airchamber and each is provided with a valve l0 of ordinary constructionthrough which it may be inflated.

For moving.;` the rim sections 8 toward and from the fixed rim portion6, l have provided a plurality oi crank disks which are journaled 'inthe .fixed portion 6 and are connected by links to the rim sections 8.There 'will preferably be two crank disks ior each rim section, one ateach end thereoi. These crank disks are indicated at ll and each is inston a shaft l2 which extends through the telly 3, and the inner end 13 oiwhich is journaled in the fixed rim portion 6. A link 1.4L is pivotallyconnected at one end to each crank disk, as shown at l5, and at theother end to one of the rim sections 8, as shown at 16. 'llhere are thustivo crank disks l1 and their links 14: for each rim section 8, and byturning' these tivo crank disks For any rim section, said rirn section`will be separated Yfrom the liked rim section, as shown in dottedlinesFig. 3. lilhen any rim section 8 is thus separated 'troni the fixedportion (i, the correspoiidingi` tire section can be readily removed lnorder to more securely hold the rim sections 8 in proper position whenthey are closed against the fixed portion 6, ll Will preferably arrangethe links 14 at the ends of the tire sections@ so that they cross eachother, as shown in Fig. 3, that is, the link l1 which is secured to oneend of one section 8 will be connected to a crank disk 11 that issituated opposite the end or the next adliacent section 8. 1With thisarrangement the links have a sort or' bracing action which serves tohold the rim sections 8 more secure ly in their operative position.

The inner end of each link lil is curved, as shown at 17, and thepivotal point l5 is so positioned that when the crank disks are turnedto close the rim sections 8 against the ixed poi tion 6, the pivotalpoints l5 Will be carried linst by the dead center. rille links are thuslocked in their closed position and any outward strain on the rimsections will onlyi tend to hold the links more securely in their lockedposition.

The shafts l2 extend inv-.Yardly beyond the inner face oit' the telly 2and are squared at their ends, as shown at lf3. so that a suitableWrench or other implement may be applied thereto for turning the shaftrand e 'ank disks.

`With my invention, ip any tire section becornes punctured or damaged,it can be quickly removed and replaced by a 'fresh tire section. lt willnot be necessary, theretore, for a car to carry an: extra tire, it beingsuiiicient it the car has three or Ytour extra tire sections along` toreplace any which may be damaged.

Each rim section S is provided at one end with a transverse flange ervsorm 20, as best seen in Fig; t. These vflanges 2O it between the tiresections 9 and serve to prevent any tendency tor said sections to creep.

I claim:

l. In a vehicle Wheel, the combination with a Wheel body, of a rim`thereon which is divided circumi'erentially, one side being; continuousand fiXedly secured to the Wheel body and the other being dividedtransversely into sections, a sectional pneumaticl tire on the rim,there being one section Jier each section of they rim, and operatingmeans including links connecting. each rim section with the fixedportion of the rim by which each rim section can be forced positivelyoutwardly independently of the other rim sections thereby to permit itstire section to be removed.

2. n a vehicle Wheel, the combination with a wheel body, ot atire-hohling rim thereon, said rim being divided eircini'xiierentiallyand having,` one side continuous and iixedly secured to the 'Wheel bodyand the other side divided transif'ersely into sections, crank disksrotatably carried by the lixcd portion of the rim, and links connectingsaid crank disks to the rim. sections whereby turning movement of thecrank disks will move the rim sections laterally from and towards theiiXed rim portion, and :i sectional pneumatic tire on the rim.

3. In a vehicle wheel, the combination With a Wheel body, ol' :i rimthereon which is divided circumiferentially, one side ol lsaid rim beingcontinuous and iixedly secured to the wheel body and the other being:divided transversely into sections, two links pivot- 'ally connected toeach rim section, cunk disks carried by the iiXed portion ot the rim andto whicn said links are connected, and a sectional pneumatic tire on therim.

.in a vehicle wheel, the crnnbination with a Wheel body, oit a rimthereon which is divided ciicuinlercntially, one side ot said riin beingcontinuous und liucdlv secured lo the n'heel body and the other bciugldivided trznisversely into .sections` a link pirol'cd to each end otcach rim section. a crank disk to which each link is pivotcd, saiddisksl bcing carried by the lixed portion olt the rim. and a pneumatictire on the rim, the links at the ends of the rim sections crossingerich other.

ln a vehicle wheel, the combination with a Wheel body, ot a rim thereonwhich is divided circinnin'entially, one side bring;- continuous andlixcdly secured tc the wheel body and the other side beine; dividedtransversely into ftion.u sectional ',nieumuthl tire on the rim, therebeing; one tire section. ior each section of' the i .'i, linksconnecting each rim section. to the xed portion o'lf the rim, and meansfor operating` said links thereby to shilt the rim sections trans`F vesely G. ln vehicle Wheel, the combination with :i wheel body, ol a rim.thereon which divided cireumi'erentially, one side being continuou` andlixedly secured to the wheel body and the other side beiner dividedtransversely into sections, a sectional pneunnitic tire on, the rim,there being;l oml tirix section for euch section olE the rim. linksconnectingy each rin. section to the lined portion ol' hc rim, and meansYlor operating); the linksl i'or euch rin. section ind pcndcntlylun-cin' euch rim section can be inde;wrulcntly shil'cd positivelytrunsrcrscly ol' 'the Wheel.

In testimony whereof'` l have sinned my name to this specification.

HERBERT F. SHELDON.

'Ill

CID

